Transition metal chemistry of main group hydrazides. 16. (Phosphanyl)hydrazines R{sub 2}PN(Me)N(Me)PR{sub 2} as a novel class of chelating bis(phosphines). Synthesis, coordination chemistry, and X-ray structures of cis-[PdCl{sub 2}[(p-BrC{sub 6}H{sub 4}O){sub 2}PN-(Me)N(Me)P(OC{sub 6}H{sub 4}Br-p){sub 2}]] and cis-[W(CO){sub 4}[(PhO){sub 2}PN(me)N(Me)P(OPh){sub 2}]]
- Center for Radiological Research and MU Research Reactor, Columbia, MO (United States)
- Univ. of Missouri, Columbia, MO (United States)
The alkoxy- and aryloxy-functionalized bis(phosphanyl)hydrazines of the type (OR){sub 2}PN(Me)N(Me)P(OR){sub 2} were obtained from the reactions of the corresponding alcohols and phenols with Cl{sub 2}PN(Me)N(Me)PCl{sub 2} in the presence of Et{sub 3}N. Interaction of these ligands with group 6 metal carbonyl precursors M(CO){sub 4}(NHC{sub 5}H{sub 10}){sub 2}(M=Mo, W) gave the tetracarbonyl complexes of the type cis-[M(CO){sub 4}(OR){sub 2}PN(Me)N(Me)P(OR){sub 2}]. The reactions of the alkoxy and aryloxy-functionalized bis(phosphanyl)hydrazines with Pd(PhCN){sub 2}(Cl){sub 2} or with Pt(COD)Cl{sub 2} resulted in the formation of the complexes of the type cis[MCl{sub 2}(OR){sub 2}PN(Me)N(Me)P(OR){sub 2}]. The ligands are bound cis to the metal center(s) in all the complexes. The structures of all the complexes have been established by combination of spectroscopic and elemental analysis. As representative examples, the authors have determined the structures of cis-[W(CO){sub 4}[(OPh){sub 2}PN(Me)N(Me)P(OPh){sub 2}]] (15) and cis-[PdCl{sub 2}[(OC{sub 6}H{sub 4}Br-p){sub 2}PN(Me)N(Me)P(OC{sub 6}H{sub 4}Br-p){sub 2}]] (19) by X-ray data for 19: triclinic, P1, a = 9.252(3) {Angstrom}, b = 9.882(3) {Angstrom}, c = 17.739(5) {Angstrom}, {alpha} = 83.84(2){degrees}, {beta} = 83.98(2){degrees}, {gamma} = 84.45(2){degrees}, Z=2, and R = 0.064 (R{sub w} = 0.076).
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 469832
- Journal Information:
- Inorganic Chemistry, Vol. 34, Issue 22; Other Information: PBD: 25 Oct 1995
- Country of Publication:
- United States
- Language:
- English
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